Image credit: Source: IG Group Holdings plc regulatory announcement. Never imply stock depicts the actual event.
IG Group Holdings agreed on 30 July 2026 to buy Underdog, the US daily fantasy sports and prediction markets operator, for total consideration of up to approximately $1.3 billion. Chief executive Breon Corcoran called it the deal that "establishes IG as a leader in US prediction markets, one of the most significant opportunities across trading and entertainment."
The structure tells its own story. Upfront consideration values Underdog at roughly $1.1 billion, or 2.4 times its net revenue for the twelve months to June 2026. IG will pay for about $963 million of that with 24.1 million new IG shares, worth 6.8% of the enlarged company, plus $380 million in cash, and will separately repay around $160 million of Underdog's debt. A further $200 million earnout depends on Underdog hitting 2026 net gaming revenue targets while staying EBITDA positive.
Prediction markets math is doing the heavy lifting
Underdog only launched prediction markets in September 2025. Ten months later, IG says it is already the third-largest US venue by regulated notional volume across prediction markets and daily fantasy combination trades, behind Kalshi and Robinhood. Net revenue for the year to June hit about $466 million, up 21%, with $122 million and $46 million of EBITDA in the June quarter alone. That growth rate, more than the brand, is what IG is buying.
It is also buying reach. Underdog carries roughly one million average monthly active users, more than five million depositing customers and over eleven million registered accounts, a customer base IG says is more than ten times the size of its existing US operation and largely uncorrelated with its financial-trading business. IG's own pitch is a funnel: land a bettor through sports contracts, then cross-sell them into IG's core derivatives and, in the US, tastytrade's options and futures platform.
A vertically integrated bet on the CFTC's turf
The part of the deal IG spent the most words on is not Underdog's app, it is its licence stack. Underdog holds a futures commission merchant registration, a designated contract market and a derivatives clearing organisation, the broker, exchange and clearing-house layers of the trade lifecycle, all regulated federally by the Commodity Futures Trading Commission. Owning all three lets IG internalise fees that would otherwise leak to a third party, and gives it the same federal-preemption argument Kalshi has used against state regulators trying to tax or license its contracts as sports bets.
That argument is still being tested in court, and it is the biggest risk sitting underneath the accretion math. States that classify these contracts as gambling, not derivatives, would upend the assumption that CFTC registration is a shortcut around fifty separate licensing regimes. IG is paying up front for a legal theory that has not finished being litigated.
The incentive plan reveals the real target
Separate from the purchase price, Underdog's management can earn up to $850 million under a incentive plan self-funded from the company's own earnings, but only if Underdog delivers at least $400 million of EBITDA in 2028 and $700 million in 2029. Founders take half of any 2029 payout in IG shares, deferred roughly two years. Those thresholds, roughly nine and sixteen times the June quarter's annualised EBITDA, are the real growth case behind the deal, dressed up as a retention tool.
IG is not alone in racing toward this infrastructure. Sportradar signed Kalshi and Polymarket as data and integrity clients in the same week, positioning itself as the neutral supplier regardless of which prediction market wins. Sportsbooks are watching from the other side: the category is already being framed as a structural rival to the parlay and same-game markets that fund their marketing budgets, and Flutter's own struggles building FanDuel Predicts are part of why its stock has fallen enough to help push it off the London Stock Exchange this month.
What has to go right before 2027
The deal closes the strategic review IG launched on 19 March 2026 and, together with a planned UK-to-elsewhere redomicile announced 8 July, effectively rewrites what kind of company IG is. Completion is expected late 2026 or early 2027, subject to regulatory clearance including under the Hart-Scott-Rodino Act. IG has paused its share buyback until then. Underdog will run as a standalone brand with its own management, and IG will lay out the combined group's capital allocation and guidance at a Strategy Update on 22 October 2026, the first real test of whether the market buys the accretion case or just the story.
The exchange licence is worth more than the app
Strip away the brand and the customer count, and IG bought a federally regulated broker, exchange and clearing house in one transaction, at a price that assumes the legal fight over what a prediction market actually is gets settled in its favour. That is the bet, not the daily fantasy scoreboard.